The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2006
Filed:
Dec. 22, 1999
Applicants:
Jonathan J. Wierer, Jr., San Jose, CA (US);
Michael R Krames, Mt View, CA (US);
Serge L Rudaz, Sunnyvale, CA (US);
Inventors:
Jonathan J. Wierer, Jr., San Jose, CA (US);
Michael R Krames, Mt View, CA (US);
Serge L Rudaz, Sunnyvale, CA (US);
Assignee:
Lumileds Lighting U.S., LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high performance, highly reflective ohmic contact, in the visible spectrum (400 nm–750 nm), has the following multi-layer metal profile. A uniform and thin ohmic contact material is deposited and optionally alloyed to the semiconductor surface. A thick reflector layer selected from a group that includes Al, Cu, Au, Rh, Pd, Ag and any multi-layer combinations is deposited over the ohmic contact material.